Blast Zone

10

Damage 20 vehicles or more with a single Crashbreaker

This is really easy after you've beaten the game. Choose the first Road Trip on Windrush and pick the Trashmaster elite. Pile up a bunch of cars and don't let them explode. Wait for the second upgrade, which is always a magnet and gather as many cars as possible. When the power up is about to end or one of the cars is on fire, use your crashbreaker and you will damage more than enough.